Molder&#39;s flask.



`0. R. BERGER.

MDLDBB'S FLASK. APPLIUATION FILED JAN. 27. 191s.

w 9. M M 1 wf COLUMNA PLANoclAl-H C0.. WASHINGTON. D. c,

UNITED STATES lPATENT OFFICE.

OTTO R. BERGER, F

MULDER S FLASK.

Application 'filed January 27, 1913.

To all whom it may concern.'

Be it known that 1, Cr'ro R. BERGER, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Molders Flasks, of which the following is a specification.

This invention relates to molders flasks, which may be constructed of separable side and end members so that the flasks may be made up for any desired size of casting without having a separate flask for each size.

The principal object of the invention is to provide a flask of this class which may be readily assembled and taken apart, and which is effective and efficient in operation.

Another object of the invention is to form the members, of which the flasks are constructed, with inclined transverse ribs.

A still further object of the invention is to provide perforated alining lugs, which are slotted, to prevent the perforations from becoming clogged.

A still further object is to provide means for forming an extension of a flask of the class described.

For the attainment of these ends, and the accomplishment of other new and useful objects, as will appear, the invention consists in the features of novelty in the construction, combination and arrangement of the several parts generally shown in the accompanying drawing and described in the specification, but more particularly pointed out in the appended claims.

In the accompanying drawing, Figure 1 is a perspective view of a flask constructed in accordance with the principles of this invention, parts being omitted for clear-ness; Fig. Q is a detail sectional view of a modified form of corner connecting device; Fig. 3 is a side elevation of one of the extension plates; Fig. 4l is a detail view showing one of the corner connecting pieces in section; and Fig. 5 is a perspective view of one of the corner connecting pieces.

It is customary, in foundries, to have a number of flasks of different sizes corresponding to the size of work which it is desired to do, and with the flasks at present used it is necessary to have a complete flask for each different size. This necessitates a great many flasks, which must have a suit- Specification of Letters Patent.

CLEVELAND, OHIO.

Patented June 16, 1914.

Serial No. 744,355.

not only is alarge space necessary for storage purposes, but, also, a great amount of capital must be tied up for various sizes which are seldom used. The present invention contemplates that the flasks be constructed of separable sides and end members, which may be quickly and easily secured together to make a flask of any desired size. Vlith such a construction, it is obvious, of course, that the least number of parts need be kept in stock, and, when not in use, the flasks may be taken apart and so disposed that they take the least possible space in storage.

In the present exemplification of the invention, the numerals 10 and 11 designate generally the side and end members of a flask. These members are constructed of any suitable material, but are preferably made of metal, and are slightly angular in cross-section with the concave portion disposed inwardly. Extending transversely' across the members on the inside thereof, and inclined to the edges, are ribs 12, the outer edges of which are preferably substantially flush with the edges of the members. The inclined ribs form retainers for holding the sand within the flasks.

At the extremities of the members 10 and llthey are beveled, preferably at an angle of 4:5 degrees, so that they may be brought together to form a rectangular structure. 1n order to secure the side and end members rigidly together at the cor ners, they are provided with lugs 13 and 14 having registering perforations through Awhich a fastening device or bolt 15 may readily be inserted to secure them together. 1f desired, a corner connection having other openings lll and 15, as shown more clearly by Fig. 2, may be employed. "With this construction it is possible to substitute the end members for the side members and the side members for the end members, if dcsired.

Cn the outside of the members, preferably the side members'lO, they are provided with perforated lugs 16 having a slot 17 which extends through the outer edge of the lug forming an opening for the perforations, so that any material disposed in the per foration may be readily dislodged through the slot.

Both the side and end members are pro- 55 able storage place when not in use, so that vided with projections 1S adjacent one edge 1 thereof having vertical slots 19 therein.

These slots 19 are adapted to receive and form a seat for extension plates 20 and 21.

The extension plates 20 are also preferably provided With beveled extremities 22 and at the upper edge of the extremities with notches The plates and 21 correspond in length to the side and end members, and, since the lower edges of the slots 19 are substantially vflush With the sides of the members, the lplates fit snugly around the side and end members. In order to secure the vends of the plates quickly together, to prevent the plates from bulging or becoming bent, corner pieces 24k aie provided. These corner pieces are preferably triangular in construction and are formed with a triangular slot 25 extending from one end thereof to a point adjacent the other end, so that a head26 is formed at the other end. These corner pieces are placed over the abutting ends of tivo adjacent plates, and the head 26 of each one is seated in the notches 23 at the corners of the plates, so that the surface of the top edges of the plates is flush and even.

It is evident that the flask extension may be removed` as a Whole from the flask, or the 4flask and extension may beraised together by means of'a handle 27 of any suitable construction, one of which is located on the outside of each end piece. By constructing flasks with separate side and end members, as herein described, it is obvious that a Vgreat many different sizes of flasks Vmay be ma'de from a relatively few different members. 'Itis necessary only to vary the side or end members to vary the Width or length of the flasks to accommodate a casting of any'desired size. Y

Thefpro'jections 18 and the adjacent side and 'end members are provided with perforations 18, and the plates 20, 21 vare provided With perfor-ations 27 which register with the perforations 1S in the projections 18`so that a pin 28 or other fastening device `may be inserted therethrough to hold theplatessecurely in position with respect to the frame.

AWhat I claim is:

1. A molders flask embodying separable and interchangeable side and end pieces With beveled ends, and means for securing the sides and ends together at their eX- tremities.

2.In a molders flask, the combination y with separate side and end members having beveled extremities and adapted to be interchangeably secured together at their eX- 'tremities, and means for releasably securing the separate members together.

3. In a molders flask, the combination with v:separate side and end members `each' having vbeveled extremities and adapted to be interto be inserted in said seats,

being formed with perforated lugs, and means to releasably secure the said members together through the perforations.

Je. In a molders flask, separable side and end members releasably secured together and having an outer web ol material angular in crossesection with the concave face disposed inwardly and having ribs extending transversely across and inclined lo the edges inside of the members at an acute angle and with the outer edges of the ribsI substantially iiush with the edges of' the members.

5. Si molders flask comprising separable and interchangeable members constructed of material having a concave face inwardly disposed wi'th ribs extending transversely across and inclined to the edges in the concave portion, the outer edges of the ribs being substantially fiush with the outside edges of the member..

6. A molders flask comprising side niembers having integrally formed laterally projecting lugs with perforations therein, the outer side of the perforation extending w through the outer edge of the lug to form a slot therein less in width than the perforation.

7. In a molders liask, side and end meinbers having beveled extremities adapting c them to be interchangeably secured together at the extremities, some of the members being provided with perforated lugs forming alining` openings, the outer edge of each perforation being slit through the lug to form an escape for material lodged in the perforation.

8. il molders flask comprising separate side members, and separate end members of ordinary depth, and means forming a bodily removable extension of each of the said members to increase the ordinary depth of the flask.

9. In a molders flask, the combination with separable and interchangeable side and end members, and separable and interchangeable removable extensions adapted to be secured to the members.

10. In a molders iiask, the combination with separable and interchangeable side and end members, means to secure them together, bodily removable extension plates corresponding to said members, and means in connection with the members to form a seat for the extension plates.

11. In a molders flask, the combination with separable and interchangeable side and end members having slotted seats adjacent the edgesthereof, extension plates adapted and means to secure the plates together at the corners thereof.

12. In a molders flask, the combination With separable and interchangeable sidefand changeably secured together, the extremities end members having slotted seats adjacent the edges thereof, extension plates adapted to be inserted in said seats, the plates being formed with notches at the upper edges of the corners, and means forholding the plates together at the corners, said means comprising triangularly slotted pieces which abut the upper edge of the notches to present a smooth upper surface on top of the plates.

13. ln a molders iaslr, an extension device therefor comprising plates corresponding in length to the dimensions of the flask beveled at the corners and formed with notches at the upper edge of each corner, and triangular corner pieces slotted transversely and adapted to be inserted over the adjacent edges of two plates to bind them together, the upper portion ofthe corner piece being seated in the notches so that the upper face of the corner piece is flush with the top of the plates.

14. A molders flask comprising separate side and end members having beveled corners with perforated cooperating lugs to adapt them to be secured together at the corners, some of the members having outside projecting lugs with perforations therein, the outer edge of each lug having a slot therethrough communicating with the perforation, the members also being provided on the outside adjacent the upper edge thereof with projections having vertical slots therein and being formed with a concave inner` face having transverse ribs inclined to the edges of the members, the outer edges of the ribs being substantially flush with the outside edges of the members, extension Aplates having beveled corners with notches at the upper edges of the corners adapted to be inserted in the notched lugs of the members, and corner pieces with triangular slots therein inserted over the corners of the plates and seated in the notches forming a flush surface on top of the plates.

15. The combination with a moldersflask having slotted projections thereon, of an extension therefor comprising separate plates adapted to be disposed parallel with the sides and ends of the flask in the said slots, the projections and plates being provided with registering perforations, and means to releasably secure the extension to the flask through the registering perforations thereof.

16. In a molders flask, the combination with a plurality of separate members bev` eled at the ends and differing in length adapted to be used in pairs interchangeably with members of the same and different lengths to form a cope of any desired size, means releasably to secure the beveled ends together, and a bodily removable extension therefor comprising separate side members and separate end members corresponding in length to the other members, and separate and independent means for securing eXtension members together at their extremities.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 21st day of January A. D. 1913.

OTTO R. BERGER.

Witnesses:

STEPHEN J. HANNAGAN, RICHARD KENNEDY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

